Computer screen display or portion thereof with graphical user interface



The FIGURE is a front view of a computer screen display or portion thereof with graphical user interface showing the new design.

The outermost broken line illustrates the display screen, and the broken line showing of text illustrates portions of the graphical user interface. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof with graphical user interface, as shown and described. 